Control mechanism.



H. E. 00mm. comn'oz. MECHANISM. 1 APPLICATION FILED APB. 13, 190B.

2 SHEETS-SHEET 1.

llmenlar Patented Mayll, 1909';

H. E. COPFIN.

CONTROL MECHANISM. APPLIOATION rnnnwrn. 13,1900.

Patented May 11, 1909.

2 SHBETS-SHEET 2.-

HOWARD E. COFFIN, oF' DETROITLMICHIGAN.

CONTROL MECHANISM.

Specification of Letters Patent.

Patented May 1 1, 1909.

Application filed April 13, 1908. Serial No. 426,757.

To all whom it may concern: v

Be it known that I, HOWARD E. COFFIN, a c tizen of the United States of;America, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certainnew and useful Improvements in ControlMechanism, of which the following is a specification, reference beinghad therein to the acanying drawings.

comlp T e nvention relates to control mechanism for motor vehicles andmore particularly to the means for controlling the main clutch whichcouples the motor to the drive shaft.

The invention consists in the novel constructlonas hereinafter setforth.

In the drawings-Figure 1 is a side elevation of the control mechanism;Fig. 2 isa I ,plan View thereof.

' and having secured thereto the de .the adjustable screw A is the motorvehicle frame. B is a rock shaft extending transversely of said frameending rock arm C which operates the s iiftable member D of the mainclutch E.

F is apedal lever mounted upon the rock shaft B and extending upwardthrough an aperture in the foot hoard G of the vehicle body inconvenient position for operation.

shaft mounted upon the frame A parallel to andin rear of the shaft B.

-I is a hand controlled lever secured to the shaftH. H

J is a depending rock arm on the shaft H and K isa rod or slidelongitudinally adjustably secured in bearings L upon the frame A; Thisslide K has a forked upward extension K for engaging a pin upon the rockarm J whereby the movement of said arm is communicated to the slide. Theopposite end of the slide K is fashioned to form an incline or cam K.

M is a rock Shea axiall alined with the rock shaft B and both of t eseshafts are t u' bular and mounted upon an inner rock shaft N.

O is a rock arm on the shaft M which extends adjacent to the slide K andhas an antifriction roll P which lies in the path of the incline or camK on saidslide.

Q is a rock arm on the shaft M located adjacent to the pedal F andhaving at its inner end a threaded bearing in which is scoured R, andthis screw bears against the pedal F.

The construction above described is one in which the clutch E may becontrolled alternatively by the pedal F and the hand lever I, and thearrangement is such that the operation of the hand lever will alsooperate the pedal lever, but the operation of the pedal lever isindependent of the hand lover and will not disturb the adjustment of thelatter. This independent movement of the pedal lever is permitted byreason of the fact that the rock arm Q is free to move with the rockshaft M, arm Q and pedal lever F, and is not positively coupled with therod or slide K, but is free to move independently thereof wheneverthepedal lover F is directly actuated. On the other hand the movement ofthe slide under the actuation of the lover I will always positivelyactuate the rock arm Q and through the medium of the rock shaft M androck arm Q they impart movement to the pedal.

The continued use of the clutch E will rc sult in wearing of thefriction surface which necessitates a slightly greater movcmcnt of theshiftable member D to effect the locking ofthe clutch. This would changethe position to which the lover I must be adjusted in operating theclutch, and .to avoid such a result the screw R may be ad usted tocomlever,

- .iensate for the wear, Thus y suitably adjusting this screw the throwof the lover I in operating the clutch may be maintaincd always the sameWhat I claim as my invention is: 1. The combination with mechanism forcontrolling a clutch, of a hand-controlled lever for operating saidmechanism, a pedal lever adapted to operate said mechanism whileconnected to be operated upon the movement of said hand-oonr,rollcdlover, and means of adjustment intermediate said hand-controlled loverand said clutch operating I'nechanism for com 'iensating for wear in theclutch and maintaining the throw of said lever'the same.

2. A control mechanism for a clutch comprising a pedal lever, a handcontrolled lover, a slide actuated by said hand controlled a cam on saidslide, a rock arm actuated bj, said cam, and a member actuated bysaidrock arm having a push bearing on sai pedal lever.

Y 3. A control mechanism comprising clutch operating mechanism, a pedallever for actuating said mechanism, a hand controlled lever fornnng asecond means for actuating lUll ill)

- purpose described.

said mechanism, and means of adjustment intermediate said hand lever andsaid clutch operating mechanism for compensating for 5. A controlmechanism for a'olu tch comprising a pedal lever, a hand-controlledlever, a slide actuated longitudinally by said hand- -controlled lever,a cam on said slide, a rock arm actuated by said cam, a member actuatedby said rock arm having a'push bearing on said pedal lever, and meansof' adjustment between said member and said pedal lever:

6. A control'nieehanism for a clutch, com prising a rock shaft, adepending rock arm thereon, a pedal lever for operating sair l rock arm,a second rook arm on said rock s1aft,.a

member connecting, said second rock arm with said pedal lever, a secondrock'shait, a

hand-controlled lever 'thereon, a rock arm also on said'rock shaft, aslide actuated longitudinally by said rook arm, anda cam on. said slideior operatlngthe second "rock arm on said first reek shaft.

In testimony whereof I afilx my signature n presence of two witnesses.

HOWARD E. (,OFFIN.

, Witnesses:

NELLIE KINSIQLLA, JAMES P. BARRY.

